Bryan's parents pay him a base allowance of $15 per week and $4.55 per hour for extra chores he completes. mrs. smith pays bryan $7.85 per hour to lifeguard at the city pool. write an equation that models bryan's total weekly income.

The money he receives from his parents would be the equation 15 + 4.55h, since he is guaranteed to recieve $15 (hence why there is no variable to possibly change that term) and receives $4.55 per extra hour of chores.

The money he receives from Mrs. Smith is 7.85h, since he earns $7.85 for each hour of work which he completes.

The sum of these amounts would be 15 + 4.55h + 7.85h.
If you add like terms you get the equation 15 + 12.40h.

J= r + 9 because since jessica rode 9 more miles than roger, you add 9 miles to rogers mileage.